News Corp has announced several management changes since unveiling plans in June to split into separate publishing and entertainment businesses. Mr Miller said in an email his departure was “amicable".

He led efforts to distribute the company’s films and TV shows through new digital outlets.

Also he oversaw the redesign and sale of MySpace, and helped create The Daily, a newspaper for the iPad.

Mr Miller negotiated agreements for the company to buy stakes in Roku Inc and Bona Film Group, according to a statement it released. He serves as a News Corp representative on the board of Hulu, the video streaming service.